diff --git a/pyredis/helper.py b/pyredis/helper.py
index c000eb2..e9f60f3 100644
--- a/pyredis/helper.py
+++ b/pyredis/helper.py
@@ -9,7 +9,7 @@
 from pyredis.protocol import to_bytes
 
 
-crc16 = crc.Calculator(crc.Crc16.CCITT)
+crc16 = crc.Calculator(crc.Crc16.XMODEM)
 
 
 def dict_from_list(source):
diff --git a/setup.py b/setup.py
index 741a951..3e3a2e3 100644
--- a/setup.py
+++ b/setup.py
@@ -23,10 +23,10 @@
             'Programming Language :: Python :: 3'
     ],
     setup_requires=[
-        'crc'
+        'crc>=7.0.0'
     ],
     install_requires=[
-        'crc'
+        'crc>=7.0.0'
     ],
     keywords=[
         'redis'